Gravity soap-dispensing valve



Feb. 20, 1923. 1,446,217.

M. L. sHULTz.

GRAVITY SOAP DISPENSING VALVE. FILED APR. 20'. 1920.

atented Felofgd, 1923i.

than?? 'r FSF@ N A `N MICHAEL L. sHU'Lrz, or CIiIoAeO,` iimiivois7` Assieivos To U. s. SANITARY `SPECIAIXIIES; CORPORATION, CHICAGO, ILLINOIS, A

ILLINOIS.

ConroiiA'rIoii` or M GRAVITY soAr-nIsi niisiivG vALvIi.

Application filed April 20, 1920i Serial No. 375,191.

To @ZZ whom t may concern: v f

Be itlrnoivn that l, MICHAEL L. SHUL'rz, a citizen of the United States, 4residingat Chicago, county of Cook and State of 'Illinois,ihave invented certain vneiv and use ful Improvements `in Gravity Soap-Dispensing Valves, OI' which the following is a specification. i

rl`he present invention has to do With a soap-dispensing valve or the like for dispensing liquid soap and other liquidmaterials, although, as Will presently appear, the construction herein disclosed may be used for, dispensing many other classesot liquid or semifliquid material. f

One of the objects of the invention is to provide a verysimpledevice which Will op- 1 erate in a very positive manner to deliver the desired quantity oli' soap at each operation. Another object of the invention is to provide a construct-ion Which may be v ad-,j

justed or` re-set from time to time in order to adjust or modify the quantity of material which will be delivered. v

Another object of the invention is to provide a very simple `and edective valve ar- Will appear from a detailed description of the saine, which consists in the features of construction and combinations of partshere-4 inafteidescribed and claimed.

In the drawing-- v Figure 1 shows a longitudinal sectional view through a dispensing device einbodyinof the features of the present invention;

ig. 2 shows a cross sectiontaken on the line 2 2 of Fig. v1, looking in the vdirection of the arrows;y

Fig. 3 shows a longitudinal section through a inodilied form of construction, and F et shows a vcross section taken on the line eli-4l of Fig. 3, looking in the direction ot the arrows.

`I vvill first describe the construction shown l in Figsl andy 2. y l

. `In this case there is provided a body in ember or block 5 `which may be of circular orangular form.- It is provided with a longitudinal bore 6 of circular form, Within Which operates a plunger. i Near one end of this bore is provided a shoulder 7 against ivhlch ,may 4be. seated i a valve at its extreme end the bore is threaded as at 9 for theaccommodationof one end of a nipple 10. This nipple is provided'with a longitudinal bore 11 having' a shoulderl against Whichseats a strainer or screen 13. `The end le ot the 'nipple is threaded `for connection to a stationary xture or to the pipe through which the soaporrother inaterial-is delivered. Adjacent to the shoulder 7` the body 5 is provided with a delivery passage l5, whichv conveniently terminates in af nozzle or spoutk 16.` The valve block 8 is provided with a central longitudinal bore 17, the rear end of which communicates with the bore 11 of the nipple 10, andthe front end of the bore `17 `communicates.with the chamberv 62 `The rangementfor positively insuring the llovv` of `the material in` the proper direction `niunicates with the delivery passage 15, nov

matter 'what angular position the valve block Smay occupy Within the fixture.

The valve block is provided Withfa longi# tudinal bore 19, theextreineeiid portion 2O of which is of reduced size and constitutes a` port in communication with the chamber 6. A ballvalve 21 seatsvvithin the passage 19 and is` normally held against the shoulder at Vthe innerend of the port 2O by means ot a spring 22. A plug 23 closes the inner eiidy oit the passage 19 and maintains the spring under the desired compression. This arrangementis such that when the liquid is forced through the port 20 ybv pressing back the check valve i'nayiind'its Way into the annular orencircling groove 1S and thence into `the discharge passage 15. Ot course, in case the ball check valve happens to stand directly' opposite the discharge passage lthe liquid passing the ball check valve ivillloiv immediately into the discharge passage 15 without having to encircle'a portion ot the valve member 8 Athrough the recess 18, but by block S, and v l elena iiquid the provision of said recess 18 it is not necessary to set the valve member in the device at anyparticular angular position.

A piston or plunger works within lthe chamber 6. This plunger includes a stem 24, the inner end of which is provided with a bore 25'for the accommodation of a spring 26. One end of said spring presses against the inner end of said bore 25 and the other end presses against the valve member 8. A

nipple 27 serves to compress a packing gland or gasket 28 against the stem 24.

A needle 29 extends ,centrally through the bore 25 of the plunger and has its outer end secured to a portion of the plunger, while its inner end alwavs stands in alignment with the central bore or passage 17 of the valve member. When the plunger is forced home this pin 29 enters the bore 17 with a nice fit and `closes theJ same, so that any further inward movement of the plunger compels the soap or other material to be discharged vpast the check valve and through the passage 15. On the back stroke the Withdrawal of the pin29 causes the suction of the desired amount of soap into the bore 6 preparatory to thenext operation.

On the inner end` of the sleeve 24 is mounted a plunger head '30; and said plunger head is preferably threaded onto said innerend, as clearly illustrated in Fi g. 1. O n the back stroke this plunger head limits the backward movementv by engagement with the packing gland, and on the front or working stroke the plunger head 30 or the inner end of the sleeve 24 limits the movement, depending upon. which of these parts comes first into contact with the valve member 8. Ordinarily the inner end ofthe sleeve will make this contact. In such case the threading of the plunger head 30 backward along Vthe sleeve 84'will cause a reduction of the effective stroke, so that it is possible to thus set thek device to deliver just the desired quantity of material.v i,

The construction shown in Figs. 3 and 4 issimilar `to that above explained but differs therefrom chiefly in the detailed constructionof the valve member. rlhis valve member, in the construction of Figs. 3 and 4,"is designated `by the numeral 31. It is Y provided with two transverse passages 82 and 33, respectively, which passages have the reduced ends 34 and 35 constituting ports communicating' respectively with the plunger chamber 6 and the bore 11 of the nipple l0. Aball check valve is located within each of the passages 32 and 33 and the construction of each of these ball check valves may be similar to that explained in `refereneeito the ball check valve `2O. The

passage 33 accommodates the intake valve and the passage 32 accommodates the discharge or delivery valve. In the present construction the longitudinal passage 17 has been dispensed with and the pin 29 is accordingly eliminated.

I/Vhile I have herein shown and described only certain embodiments of the features of my present invention, still I do not limit lyself to the same except as l may do so in the claims. y f i' 1. In a device of the class described, the combination of a body member having a longitudinally extending bore, the forward portion of said bore being of uniform diameter, there being a shoulder in the central portion of the bore, and the rear end of the bore being threaded, a valve member seated against the shoulder aforesaid, a nipple threaded into the rear end of the bore land in engage ment with the valve member to hold the same against the seat aforesaid, there being a longitudinally extending passage in the nipple, a screen in said passage, therebeing a peripheral groove encircling the valve member, there being a longitudinally ex-` tending passage in the valve member communicating with the groove aforesaid and having its front end of reduced size and eonstituting a port in communication with the first-mentioned bore, a? ball check valve working in said longitudinally extending passage of the valve member', a spring in said passage normally pressing the ball. check valve into seated position, a plug closing the rear end of said passage, there being 4a discharge port in the body member in position to communicate with they encircling groove of the valve member, ay plunger stem working in the first-mentioned bore, a plunger head threaded onto the inner end of said stem, a spring normally forcing'zthe plunger into the forward position', there be- 105 ing a suitable intake port in the valve member in communication with the bore ofthe nipple, and means for closing said intake port when the plunger is forced towards the valve member, substantially as described.

2. In a device of the class described, the combination ofl a body member having a longitudinally extending bore, the forward portion of said borev being of uniform diameter, there being a shoulder in the central portion of the bore, a valve member seated against the shoulder aforesaid, means for securing said valve member in position against the shoulder, there *being a peripheral groove encircling the valve inemsaid longitudinally extending passage of the valve member, there being a discharge port in the body `member in position to communicate with the encircling groove of the valve 1,446,217 n fg member, a plunger stem working in the irstmentioned bore, and a plunger head threaded on the inner end of said stein, there being ar suitable intake port in the `valve member, and means for 'closing said intake port when' the plunger is forced 'towards the valve meinber, substantially as described. n

In a device of the class described, the combination of a. body member haif'ing `a longitudinally extending' bore, the forward portion of said bore being of uniform diameter, there being a shoulder in the central portion or' the bore, a valve member seated against the shoulder aforesaid, there being a peripheral groove encircling the valve member, there being a longitudinally eX- tending passage in the valve member communicating with the groove aforesaid, a check valve in said longitudinally extend` ing passage, there beinga discharge port in the body member in position to communicate with the encircling groove of the valve ymember, a plunger stein working in the first-mentioned bore, and aplunger head adjustably mounted on the inner end of said stem, there being a suitable intake port in the valve member, and means for closing said intake port when the plunger is forced towards the valve member, substantially as described; y n n et. ln a device of the class described, the combination of a longitudinally extending bore, the 'forward Lportion of said bore being of uniform di-I ameter, there being a shoulder in the central portion of the bore, a valve member seated against the shoulder aforesaid, there being a peripheral groove encircling the valve member, a passage `in `the valve inember communicating with said groove and ,withl the forward portion of the bore of `the body member, a check `valve in said passage, there being a discharge port in the body member in position to communicate with the encircling groove of the valve member, and a longitudinally operable plunger body member having .a

in the forward portion ci the bore of the body member, and means for closing said intake port when the plunger is forced towards the valve member, there being a suitable intake port in the valve member, substantially as described.

MICHAEL L. SHULTZ. Witnesses:`

H. KAPPELMAN, Trios. 0. LANNINQJI'. 

